You say this to someone when you love someone like mad. Intense love or deep love needs an expression or voice. When you say to someone that you love him or her too much, you should actually mean it. There is a lot of difference between real and fake love. Love is all about feelings, emotions and expression. If you love someone very much, you should go all out to express your love. Simply sitting back and relaxing won’t help your cause. If you want to spend your life with someone whom you love, you have to be bold enough to express your love and liking to that person so that he or she has a fair and clear idea that you love him or her. In the words of E. E. Cummings, “Humanity I love you because when you're hard up you pawn your intelligence to buy a drink.”